Omsk Oblast weather in December
December is one of the least pleasant months in Omsk Oblast: highs of -13°C (9°F) and about 25 mm (1.0 in) of rain on average. Nights average -20°C (-4°F) and cloud cover 68% (NASA POWER, 2001–2025 averages). It is the 3rd driest month of the year and the 2nd coolest. Compared with November, it is cooler and drier; January brings highs of -16°C (3°F) and 19 mm (0.7 in) of rain.
Figures are long-term averages for Omsk, the largest city in Omsk Oblast. See below for other places.
Is December a good time to visit Omsk Oblast?
least pleasant month Weather score 42/100.
December is one of the least pleasant months for weather in Omsk Oblast. For better conditions, consider May–Sep.
Does it rain a lot in Omsk Oblast in December?
No, it is usually dry: about 25 mm (1.0 in) falls in an average December. It is the 3rd driest month of the year.
How warm is Omsk Oblast in December?
Days average -13°C (9°F) and nights -20°C (-4°F).
Omsk Oblast weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | -16°C (3°F) | -23°C (-10°F) | 19 mm | 63% | least pleasant |
| February | -12°C (10°F) | -20°C (-5°F) | 19 mm | 63% | least pleasant |
| March | -3°C (27°F) | -11°C (11°F) | 25 mm | 65% | least pleasant |
| April | 9°C (48°F) | -2°C (29°F) | 32 mm | 63% | least pleasant |
| May | 18°C (65°F) | 6°C (42°F) | 42 mm | 57% | best |
| June | 24°C (75°F) | 12°C (54°F) | 53 mm | 58% | best |
| July | 25°C (77°F) | 14°C (58°F) | 62 mm | 61% | best |
| August | 23°C (74°F) | 12°C (54°F) | 49 mm | 61% | best |
| September | 16°C (61°F) | 6°C (42°F) | 31 mm | 64% | best |
| October | 6°C (43°F) | -2°C (29°F) | 35 mm | 70% | least pleasant |
| November | -5°C (24°F) | -11°C (13°F) | 35 mm | 73% | least pleasant |
| December | -13°C (9°F) | -20°C (-4°F) | 25 mm | 68% | least pleasant |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Omsk Oblast in December
Weather can differ a lot within Omsk Oblast: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Omsk | -13°C (9°F) | -20°C (-4°F) | 25 mm | least pleasant |
| Tara | -15°C (6°F) | -22°C (-7°F) | 33 mm | least pleasant |
| Kalachinsk | -13°C (8°F) | -20°C (-5°F) | 25 mm | least pleasant |
| Isil’kul’ | -13°C (9°F) | -20°C (-4°F) | 24 mm | least pleasant |